Geforce GTX 670 vs Radeon R9 390X 8G

Intro

Compare those specifications to the Radeon R9 390X 8G, which comes with GPU core speed of 1050 MHz, and 8192 MB of GDDR5 RAM running at 1500 MHz through a 512-bit bus. It also is comprised of 2816 SPUs, 176 TAUs, and 64 Raster Operation Units.

Display Graphs

Hide Graphs

Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon R9 390X 8G		13555 points
Geforce GTX 670		7351 points
	Difference: 6204 (84%)

Ethereum Mining Hash Rate

Radeon R9 390X 8G		32 Mh/s
Geforce GTX 670		13 Mh/s
	Difference: 19 (146%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 670		170 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 105 Watts (62%)

Memory Bandwidth

Performance-wise, the Radeon R9 390X 8G should in theory be a lot better than the Geforce GTX 670 overall. (explain)

Radeon R9 390X 8G		384000 MB/sec
Geforce GTX 670		192000 MB/sec
	Difference: 192000 (100%)

Texel Rate

The Radeon R9 390X 8G is much (more or less 80%) more effective at anisotropic filtering than the Geforce GTX 670. (explain)

Radeon R9 390X 8G		184800 Mtexels/sec
Geforce GTX 670		102480 Mtexels/sec
	Difference: 82320 (80%)

Pixel Rate

The Radeon R9 390X 8G will be quite a bit (about 130%) better at FSAA than the Geforce GTX 670, and will be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon R9 390X 8G		67200 Mpixels/sec
Geforce GTX 670		29280 Mpixels/sec
	Difference: 37920 (130%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of megabytes per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.